Thisdevice would determine whether there is some form of electricity running through the wire without you actually needing to touch it. Now, you don\'t have to call a professional electrician nor make contact with the wire just to know whether electricity runs through itFeatures:Non-contact voltage detection, practical and convenient way to test electrical linesAccurately detects AC voltage ranging from 12V to 1000V, and distinguish them into 3 voltage levelsUsing the ABS and PVC material, the Voltage Tester can stand wear and tear, and its pocket clip allows easy handlingAuto power-off feature conserves energy while the LED torch allows operation even on dark cornersLive/Neutralwire distinguish at close rangeAuto adjust sensitivity makes the test simpleAudible and visual alarm always guard your safetyThe shining prompt of low voltage LED can warn you to replace the battery in timeAnd meanwhile, the Auto Power Off feature can extend battery usage timeSpecification:Model: PM8909Material: ABS + PVCColor: Orange+BlackFlash Light: WhiteFrequency: 50--60HzOperating Voltage: 12--1000V ACAlarm Mode: Sound and lightBattery:2*1.5V AAA(NOT included)Live/neutral wire Distinguish: sound (High,Medium,low) and LED lightNCV Sensitivity: Automatic selection of 3 kinds of sensitivity ( High,Medium,low)Size: 15.8*2*1cm/6.2*0.8*0.4inWeight: Approx.50g/1.8ozPackage list:1 * PM8909 Voltage Tester(BatteryNOT included)